1) Drowsiness 2) Dullness 3) Dulness 4) Obtuseness 5) Oscitancy 6) Sleepiness 7) Somnolence 1) Oscitancy 2) Pandiculation 3) Yawn 
oscitance 1. Drowsiness and dullness manifested by yawning, 2. An involuntary intake of breath through a wide open mouth; usually triggered by fatigue or boredom.